Myans say it is the start of the 5th age or the beginning of the apcoalypse........what does apocalypse mean....it means to reveal something that is in plain sight but has been hidden:

Apocalypse is a disclosure of something hidden from the majority of mankind in an era dominated by falsehood and misconception, i.e. the veil to be lifted." (Wikipedia) The word is derived from the Greek apokalupsis, a term applied to revelation or disclosure, to certain privileged persons, of what already exists, though hitherto it has been hidden, or only imperfectly known.